14 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Extension - C7, C8 (radial ... damage to the radial ... nerve in the radial ... in the median nerve ... Myotomes #diagnosis #neurology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
palsyMedial ... One-and-a-half Syndrome ... Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
Otalgia: • Otitis media ... 10%) • Otitis media ... Ramsay Hunt syndrome ... cervical spine #Earpain ... #Otology #Otolaryngology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
• CN VI palsy ... ptosis with CN Ill palsy ... • Neurologic ... depress when looking medially ... #Ophthalmology
Bell's Palsy - Diagnosis and Management Summary - GrepMed Handbook

Acute Idiopathic Unilateral Facial Nerve (CN7) Palsy
Presentation:
Nerve (CN7) Palsy ... ophthalmoplegia), systemic signs ... improvement <4m • Etiology ... nerve ischemia ... CNS inflammatory cause
Trendelenburg Gait: Pathogenesis and clinical findings

Skeletal Pathology of the Hip
 • Arthritis
 • Congenital hip dysplasia
Chondrodysplasia Neurologic ... Superior gluteal nerve ... abduction and medial ... Sacroiliac Joint Pain ... #symptoms #signs
Ear Pain / Otalgia - Differential Diagnosis Algorithm
Referred Otaliga:
 • Via Vagus or Glossopharyngeal Nerves
 •
Zoster (Ramsay Hunt Syndrome ... if Facial Nerve ... • Acute Otitis Media ... Otorrhea) #EarPain ... Diagnosis #Algorithm #Causes
Mastoiditis: Pathogenesis and clinical findings

Acute or Chronic Otitis Media -> 
Stage 1: Hyperemeia of the mastoid
Inferior through medial ... nerve palsy • ... hearing loss, nausea ... pathophysiology #signs ... symptoms #diagnosis #otology
Rare Causes of Abdominal Pain
 • Hereditary Angioneurotic Edema - Recurrent visceral that may by swelling
external factors • Median ... arcuate ligament syndrome ... during the post-prandial ... Abdominal cutaneous nerve ... Positive Carnett's sign
One and a Half Syndrome on Physical Exam

This 28 year old patient presented to clinic with
formation) and MLF (medial ... fasciculus), which causes ... The most common causes ... clinical #video #ophthalmology ... #neurology